AI Summary

President Trump has stated that the US must respond to an attack by Iran that resulted in the downing of a US Army helicopter. This development comes after the president had expressed optimism about negotiations to end the war with Iran. The president confirmed that Iran was responsible for shooting down the US Army Apache helicopter. This incident has led to a call for a US response, according to the president. The situation highlights a shift in tone from the president's previous optimistic remarks about negotiations with Iran.

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